Method of making a buffing wheel



Sept. 15, 1964 A. DE NUKE METHOD OF MAKING A BUFFING wnsm.

3 Sheets-Sheet 1 Filed Feb. 20. 1961 Se t. 15, 1964 A. DE NUKE METHOD OFMAKING A BUFFING WHEEL 3 Sheets-Sheet 2 Filed Feb. 20, 1961 Sept. 15,1964 A. DE NUKE METHOD OF MAKING A BUFF'ING WHEEL 5 Sheets-Sheet 3 FiledFeb. 20. 1961 United States Patent 3,148,963 METHOD OF MAKING A BUFFINGWHEEL Anthony De Nuke, RR. 3, Bothwell, Ontario, Canada Filed Feb. 20,1961, Ser. No. 90,435 6 Claims. (Cl. 51-293) This invention relates tonew and useful improvements in bufling wheels.

At present there are several types of buffs manufactured, and known. Onetype is a helically wound strip of material doubled up widthwise andwound around a hub. Another type uses a plurality of pre-pleatedmaterial wound around a hub and extending radially outward. Anotherdiscloses a strip of fabric cut in pieces on the bias and mounted on anaxle.

The present invention relates to an improvement in the manufacture ofbuffs.

The main object is to provide a method of making butts that is durable,inexpensive to manufacture, and simple in construction.

Another object is to provide a butt that is actually a combination buttin that is there is one buff inside the other.

Another object is to provide a buff that is formed to contin a bufiingcompound between the overlapping folds of the buff.

Due to the way the cloth for the bufl is cut and wound a buffingcompound, for example, tripoli, in liquid form may be brushed on thepleated strips of cloth forming the butt. The pleats of cloth and therounds of stitching used in making the buff act as pockets and hold thebuffing compound till each round of stitching is wore through when thebuff is in use. As each round of thread is wore through more buflingcompound is forced out by centrifugal action. Upon testing it wasdiscovered that enough bufling compound can be inserted to last the lifeof the bufr. If tripoli is used as the bufiing compound the buffs shouldbe used up in a reasonable length of time, or should be stored in a cooland dry room.

The butfs can be made with all new cotton or entirely from used anddiscarded buffs. Due to their construction and flexibility they areexcellent for butting odd shaped, grooved, ribbed and concaved castingsand aluminum moldings and similar pieces. On most jobs today they willoutwear the buifs at present on the market. The cost of material and thelabor used in their manufacture is relatively very low.

Huge quantities of used bufls are purchased at scrap prices. From thesethe cotton, outside ring and steel centers are recovered for reuse inmaking the buffs of the present invention. Due to the diffeerence inprice between the buff made of new cotton and the rebuilt bufi most ofthe customers prefer the rebuilt buflt.

The cost of machinery and tools to manufacture the bufr's is very low asthe buffs are made on flat steel rings or forms, gauge. The for-ms areused over and over for an unlimited number of times. The machines, jigsand fixtures, other than sewing machine and cloth cutter, can be maderight in the shop where the buffs are manufactured, with very littlematerial and cost, taking into consideration that all sizes and types,from 3 inches to 22 inches, of butts are to be made.

The invention consists in the novel arrangements, combinations andconstruction of parts hereinafter described and shown in the drawings;

FIGURE 1 is a plan view of one form of the buff partly disassembled.

FIGURE 2 is a view of part of the strips being wound to form the buff inFIGURE 1.

FIGURE 3 is a plan view of another form of the buff disassembed partly.

3,148,963 Patented Sept. 15., 1964 ice FIGURE 4 is a view of part of thecloth being wound to form the buflE in FIGURE 3.

FIGURE 5 is a plan view of another form of the buff partly disassembled.

FIGURE 6 is a plan view of another form of the butt partly disassembled.

Referring to the drawings, particularly to FIGURES 1 and 2, it will beseen that the buff comprises a center ring 1 shown in dotted lines inFIGURE 1 and for-med of suitable material, preferably steel. Overlappingstrips 2 extend outwardly on the bias and are passed around the centerring 1 to whatever diameter the buff is desired to be made. The buff maybe made with as many layers of the over-lapping material as desired. Thestrips 2 are sewn together helically as shown in FIGURE 1.

The method of manufacturing the buff shown in FIG- URES 1 and 2 is byusing a flat circular form of the diameter of the buff desired, placingspacer hooks between the outer flat form and the center ring 1, windinga long strip of tape that has been impregnated with buffing compound,for example tripoli, around both the ring 1 and the fiat form in abiased overlapping manner as shown in FIGURE 1 to the desired thickness.The strips are then stitched together as shown at 3, the strips of tapecut around the outer edge 4 and the fiat form removed for further use.

The above type of buif is excellent for all around buffing, will not ripor snag, wraps around and over rough castings and is excellent forautomatic or pushup type of butting machines. It will hold more bufiingcompound than any other type of buff.

Referring to FIGURES 3 and 4 there is shown another type of constructionof the buff. The inner layers are formed of sheets of cloth 5 passedaround the center ring 1 to whatever thickness of buff is desired.Overlapping strips of cloth 6 extend outwardly on the bias over theinner layers 5. The inner layers 5 and the outer strips of cloth 6 areimpregnated with buffing compound before being placed in position. Thelayers 5 and 6 are sewn together helically from the center ring 1 to thenecessary distance from the outer edge.

The bufi shown in FIGURES 3 and 4 is manufactured similar to that shownin FIGURES l and 2, by using a I flat circular form, spacing hooksbetween the fiat form and the center ring 1, winding the bufiingcompound im pregnated cloth 5 around the ring and form to the necessarythickness, winding the bufling compound impregnated strips of tape 6 onthe bias over the cloth 5, sewing helically the cloth and the tape fromthe center ring 1 to the inner circumference of the fiat form, cuttingthe cloth 5 and the tape 6 at the outer edge, and withdrawing the flatform.

The type of buif shown in FIGURES 3 and 4 is used for hard all aroundbuffing on steel, aluminum, brass, copper or chrome. The cloth threadson this buff run in so many different directions that extra Wear isobtained. The rounds of stitching 7 and the size of thread useddetermines the stifiness of this type of buff.

Referring to FIGURE 5 there is shown another type of bufi which isstructurally the reverse to that shown in FIGURE 3, in that the innerstrips of cloth 8 extend outwardly on the bias to the diameter of buffdesired, and the outer layers 9 are formed of sheets of cloth extendingoutwardly over the inner strips of cloth 8.

This form of butt in FIGURE 5 is used for soft and medium polishing andcan be sewn to the outer edge to stiffen the buff.

Referring to FIGURE 6 there is shown another type of butt in which theinner layers are formed of strips of cloth 10 extending outwardly on thebias to the desired diameter of the buff and flat sheets of cloth 11covering 3 the strips of cloth 10. If it is helically sewn together withthe stitching A inch apart it makes an extra hard buff. It can be usedfor hard and fast cutting.

In the construction of the modifications of the buff above described thebuffing compound, for example, tripo- 1i, is added to the cloth, andthen when the cloth is sewn to the flat form and the inner ring, and dueto the construction of the buff is self feeding due to the centrifugalforce produced.

While the invention has been shown and described with particularreference to specific embodiments, it is understood it is not to belimited thereto but is to be construed broadly and limited only by thescope of the claims.

The embodiments of the invention in which an exclusive property orprivilege is claimed are defined as follows:

l. A method of making a bufiing wheel comprising the steps ofsuccessively winding a plurality of layers of fabric around an innerring and spaced outer circular form concentric to said ring to form alaminated fabric disk with some of the layers disposed with the threadson a bias to the threads of the other layers, sewing the layers offabric together by a helical row of stitching between the ring and outerform, cutting the layers of fabric along the outer edge and removing theouter form.

2. A method of making a bufiing wheel as described in claim 1 includingthe step of impregnating the layers of fabric with a buffing compound.

3. A method of making a bufiing wheel comprising the steps of Winding afabric around an inner ring and spaced concentric outer circular form toform a plurality of fabric layers, winding a strip of fabric around saidring and form obliquely to the radius of the ring with the edges of thestrip in lapped relation, sewing the layers and strip of fabric togetherby a row of stitching between the ring and form, cutting the layers offabric and strips of fabric around the outer edge of the form and thenremoving the form.

4. A method of making a bufiing wheel as described in claim 3 whereinthe layers of fabric are formed with pleats to form spaced laps.

5. A method of making a buffing wheel comprising the steps of Winding astrip of fabric around an inner ring and spaced concentric circular formwith the edges of the strip overlapped, winding a fabric around theinner ring and circular form to form layers of fabric in superimposedrelation to the wound strip of fabric, sewing the fabric strip andlayers of fabric together, cutting the strip and layers of materialalong the outer edge of said form and then removing the form.

6. A method as described in claim 5 wherein the layers of fabric arepleated to form spaced overlaps.

References Cited in the file of this patent UNITED STATES PATENTS

1. A METHOD OF MAKING A BUFFING WHEEL COMPRISING THE STEPS OFSUCCESSIVELY WINDING A PLURALITY OF LAYERS OF FABRIC AROUND AN INNERRING AND SPACED OUTER CIRCULAR FORM CONCENTRIC TO SAID RING TO FORM ALAMINATED FABRIC DISK WITH SOME OF THE LAYERS DISPOSED WITH THE THREADSON A BIAS